COMM-1057EL Chapter Notes - Chapter 1: Statistical Inference, Descriptive Statistics
11 Sep 2017
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Document Summary
Statistics is a way to get information from data. It is a tool for creating new understanding from a set of numbers. Descriptive statistics deals with methods of organizing, summarizing, and presenting data in a convenient and informative way. One form of descriptive statistics uses graphical techniques, which allow statistics practitioners to present data in ways that make it easy for the reader to extract useful information. Another form uses numerical techniques to summarize data, such as: Inferential statistics is a body of methods used to draw conclusions or inferences about characteristics of populations based on sample data. The population is the group of all items of interest to a statistics practitioner it is typically very large and may, in fact, be infinitely large: a population does not necessarily refer to a group of people. A sample is a set of data drawn from the studied population.
